Cita APA (7th ed.)

Radetzki, M. (1990). A guide to primary commodities in the world economy. B. Blackwell.

Cita Chicago (17th ed.)

Radetzki, Marian. A Guide to Primary Commodities in the World Economy. Oxford: B. Blackwell, 1990.

Cita MLA (9th ed.)

Radetzki, Marian. A Guide to Primary Commodities in the World Economy. B. Blackwell, 1990.